In summer, our auto repair shop in Greenville, SC, sees many AC issues. One common question is, “Why does my car air conditioning stop working when I stop driving?” Here are a few explanations based on our experience.
- Low Freon Charge: A frequent cause of AC problems is low refrigerant. If Freon levels are low, cooling will suffer. This often leads to warm air at the vents when you stop. Customers frequently report warm air while in drive-throughs or school pick-up lines.
- Engine Performance Issues: Major engine problems can impact your AC. The engine’s computer may turn off certain systems to prevent stalling. The air conditioning system is one of these. You might notice the AC stops working when you aren’t driving.
- Electric Cooling Fan Problems: A common reason for warm air when stationary is a faulty electric cooling fan motor. When you’re stopped, the air can become warm. The AC system needs airflow through the front of the car to cool the AC condenser. The electric cooling fan motor is responsible for drawing air in when the car is still. If this motor fails, the AC will stop working when you’re not driving.
What Can I Do If This Happens?
If you notice warm air from your vents, there’s a problem. We can help! Contact our auto repair shop on Wade Hampton Blvd. in Greenville and schedule an appointment with one of our experienced mechanics. You can easily book your appointment online. Just click the BLUE BOOK ONLINE button to take control of your air conditioning repair.